Carbonator



Nov'. 8,1927. 1,648,575 R. B. CAMPBELL A CARBONATOR Filed Aug. 24, 19253 SheetSf-Sheet 1-v i 'l Il Y 1|".

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IN V EN TOR.

g@ f-Raberzfampbelz ATTORNEW Nov. 8, 1927. n 1,548,575

` R. B. CAMPBELL CARBONATOR Filed Aug. 24. 1923 3 Sheets-Sheet? 60 ummm'A INVENTOR. Fig, Robepf. Campbell A TTORNEY.

Nov. 89 1927. 1,648,575

R. B. CAMPBELL CARBONATDR Filed Aug. 24, 1923 3 Sheets-Sheet 3 INV ENTOR.

B01761015. amjnb elZ wf/7%NEY Patented Nov. 8, 1927..

UNITED STATES PATENT OFFICE.

OBERT B. CAMPBELL, F LONG ISLAND CITY, NEW YORK, ASSIGNOR, .'BY MESNEAS- SIGNMENTS, T0 DRY ICE CORPORATION 0F AMERICA, OF NEW YORK, N. Y., .ACOR- roBATIoN oir DELAWARE.

CARBONATOR.

Application led August 24, 1923. Serial No. 659,122.

This invention relates to siphon bottles and means for charging water inthe home to provide home beverages. It consists primarily of a siphon inconnection with a charging bottle provided with a safety means forprotection to the user.

In the specification like parts are referred to by like numerals in theseveral views of the accompanying drawings, in which:

` io Figure 1 is a side view of a bottle with parts broken away; Fig. 2is a longitudinal sectional View of the neck of the bottle, partly inelevation; F ig. 3 is a detailed sectional view on the Mline 3-3 of Fig.2;

Fig. 4 is a view of a modified form of siphon head; v

Fig. 5 is an enlarged sectional view of the charging valve;

Fig. 6 is a detailed sectional view on the line 6 6 of Fig. 5 looking inthe direction of the arrows;

Figs. 7. and 8 are detailed views of the valve cup;

Fig. 9 is a side elevation of the charging elements applied to thesiphon bottle;

Fig. 10 is an enlarged sectional view of the safety valve; Fig. 11 is asectional view on the line 11-11 0f Fig. 1o.

Referring more particularly to the drawings the numeral 1 shows a bottleof glass or other similar non-corrosive material covered with a metallicshield. This shield is composed of two parts. A base member 2 and a top3 seamed together as at 4. The

upper member 3 having-'sight holes 5 thereinw'" for a purpose to belater described. ...lWithin the metal case or shield 2 and vat-"thebottom thereof is a rubber cushion 6.

Referring to Fig. 2, the upper part of the casing 3 is formed into aneck closely fitting the neck of the bottle 1 and is provided with screwthreads 7 and an overlying lip 8 resting on the neck of the bottle.Extending within the bottle is a glass Siphon tube 9 which extends closeto the bottom oi the bottle as shown. 'The upper end ot this tube issecured in a casting l0 fitted with a rubber gasket l1.

An adaptor yis secured to the top of the member 3 by means of a screwthreaded portion 13. while bearing upon the rubber gasket l1 and firmlyclamping it t0 the neck of the bottle is a depending shoulder 14:

screw threaded portion 17 to receive the siphon head 18, said portion 17being provided with a passage 15, as shown.

The Siphon head 18 is provided with a valve 19 and the usual spigot 20.The valve 19 and its controlling spring 21 are operated by a lever 22.These elements are of wellknown construction but form part of my novelcombination.

The means by which the siphon is charged, consists of a valve located-inthe head of the Siphon separate from the valve through which thevcarbonated water is discharged. This may be formed integral Vwith thehead as shown in Fig. 2, or as a separate element as shown in Fig. 4.

Referring particularly to the form shown in Fig. 2, the casing 23 isintegral with the siphon head body and is provided with a valve seat 24.carried by a screw plug 25 which is to be tightly screwed into the bodyof the valve 23 so as to insure a perfect seal and thus prevent theescape of the gas. VThe plug 25 is provided with a passage 26 and ascrew threaded extension 27.

' :Bearing against the valve seat 24. in a rub- Iber valve 28 heldwithin a valve cup 29.

This cup being heldy against the face of the seat, by means of a spring30. In the wall of vthe Siphon head is a passage 31 leading fromthewchamber in the valve body 23 to the innerchamber of the siphon valvehead.

In the form shown in Fig. 2, the valve cup 29 is provided on itsunderface with a projecting stud 32 uand in the bottom of the valvechamber there is a corresponding stud. In the event that when chargingthe bottle the gas should be turned on too rapidly this valve will seat,bringing together these two studs'and thus act as a check valve to prerent too rapid charging of the bottle.

y The valve cup 29 as shown in Fig. 3 is of hexagonal form which whenplaced in the valve chamber provides passages 33 thus permitting the gastoiiow around the cup through the passage 31"*and intothe bottle ofwater to be carbonated-AA hose 32h-issecured to the screw threadedextension 27 of tlie v.alve member by means of a swivel 35, a's'shown inFig. 9. A similar swivel 36 connects the opposite end' of this hose withthe power bott e 37 which contains a supply of carbon dioxide with whichthe siphon is to be charge Intermediate the ends of the hose a safetyvalve is provided. This consists of a casing 38 adapted to be secured toa plu 39 carried by a connecting nipple 40. he lug 39 carries the valveseat 41 against w ich is adapted to seat the valve 42 carried by valvecup 43 held in position by a spring 44. An escape opening 45 is provided1n,

the end of the casing 38. The valve cup 43 is also of angular formationand provides the gas assages 46. 46 is a gas passage through t e plug39.

The power bottle 37 is operated by means of a hand wheel 47. Bottle 37contains earbon dioxide under high pressure.

In Figs. 5 to 8 inclusive is illustrated a modified form of chargingvalve which is not integrally formed with the siphon head and consistsas follows:

A casing 50 provided with a screwthreaded extension 51 is adapted to bescrewed into the side wall of the siphon head, as shown in Fig. 4. kThecasin 50 is provided with a valve chamber 52. e upper end of the chamber52 is threaded at 53 to receive a screw plug 54 which carries a valveseat 55. A passage 56 extending through the screw plu as shown in Fig.5. The upper end of t is plug is provided with a screw threaded nipple57 for connection with the hose of the charging element. The rubbervalve 58 is carried by a valve cup 59 and is normally held in closedposition by spring 62. T e valve cup 59 1s of angular formation in crosssection and provided with the gas asse-ges 61 between it and the wallsof the c amber 52, as shown in arried by the underface of the cup 59 arelugs 60 which act as sto s to prevent said cup from going too far anthus preventing the passage of gas through the opening 63 1n the lowerextension 51 of the valve casing.

The operation of the device is as follows: The siphcn head together withthe adaptor is removed from the neck of the bottle. The bottle is thenfilled with water to a point on a line with the bottom edge of the sightholes 5. The siphon head and the adaptor are then tightly screwed downon the neck of the bottle so that the gasket therein will tightly sealand prevent the escape of the as. The swivel on the hose is thenconnected to the stud 27 of the char ing valve, the bottle connected bymeans ci: swivel 36 to the other end.

B means of the hand wheel 47 the valve in the power bottle should beopened very gently at first allowing the gases to enter the .siphon veryslowly which will give more perfect carbonation. Should the gases bethus prevent excessive charging Aof thev Siphon.

The safety valve is so regulated that at a predetermined pressure thevalve willl liftv and permitting the excess gas to escape, reventover-charging of the siphon and anger of explosion. v

From the above, it will be evident that by use of two very sim le valvesof rugged construction I have ac ieved a fool-proof sylstem for chargingSiphon bottles whereby t e enormous pressures of 1,000 lbs. per squareinch or more, available, in liquid carbon dioxide containers, may beused for char ing siphons at home without the slightest anger to themost unskilled operator and requiring only an extreme minimumintelligence for operating in the most effective manner possible. If theoperator o ens the valve 47 too wide, a small amount o as will fiow intothe siphon, the check va ve 29 will open too wide, thereby causing itsother valve face 32 to close inlet 31. Instantly the pressure will pileup in the pipe 34 and the pressure relief valve 38 will blow. Thiswastes gas, of course, but it affords safety from possible explosion ofthe pipe 34 and at the same time the sound of the escaping gas indicatesunmistakably to any operator that something has gone wronfr and thevalve 47 should be partly or completely screwed down. This inevitablyresults in reducing pressure sufficiently to permit inlet check 32 toopen under the action of spring 30, whereupon the safety valve wil stopflowing and thc regular charging operation will be resumed. In actualpractice, this is even simpler than it sounds and is accomplished by theabove described novel combination of simple elements.

lVhat I claim is:

1. An apparatus for charging liquids with gas, comprising a dispensinsiphon bottle` a detachable head there or, a passage throu h said headhaving an inlet for receivae carbon dioxide gas and an outlet to theinterior of the Siphon, a valve chamber in said passa e, and valve meansin said chamber normal y closing the inlet, and movable under normalcharging pressures to permit passage of the charging gas to the outletand under excessive charging pressures to close the outlet.

2. In an apparatus for charging si hon bottles of the characterspecified in claim 1, a charging gas container, a hand control valvetherefor. a conduit connecting the gas container to the gas inlet of thesiphon bottle. and an automatic pressure relief valve in said conduit.

ROBERT B. CAMPBELL.

